In theory I think you could gain 4 stops. One stop is x2 more light, so x2^4 should translate to 4 stops.
However, that requires a linear intensity response from the sensor and the same size of the steps. If you just put 16bit within the same dynamic range that is covered by the 12 bit you may get better nuances but not dynamic range.... DagT > Fra: "Jostein Øksne" <[EMAIL PROTECTED]> > Dato: 2006/09/06 Wed AM 11:20:59 CEST > Til: "Pentax-Discuss Mail List" <[email protected]> > Emne: Re: Advantage of increased colour depth? > > The math is easy. There are as you say 2^4 more values available to > describe each tone in a channel, and hence the information recorded at > each pixel is mapped to a larger span of potential values. And that's > even before the actual colour is computed through the Bayer-thingy. > > The main reason for my appreciation of RAW-files over JPG or 8-bit > TIFF is the difference between 8 and 12-bit colour depth. It gives > more latitude, just like print film did over slide film. > > I still feel more comfortable about using f-stops to describe > latitude, and it would just be nice to know what to expect in a more > real-world terms of reference... :-) > > Jostein > > On 9/6/06, Boris Liberman <[EMAIL PROTECTED]> wrote: > > Jostein, > > > > I think it is easy. With 16 bits vs 12 bits per pixel you have 2^4 - > > 16 times more information recorded. What use does it make - it would > > greatly depend on RAW processing software and matching of camera > > electronics with RAW converter number crunching. > > > > > > -- > > Boris > > > > -- > > PDML Pentax-Discuss Mail List > > [email protected] > > http://pdml.net/mailman/listinfo/pdml_pdml.net > > > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
